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Finding the Fourth Proportional to 542,372.76, 748,395.59 and 300,655.13

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Solution

The fourth proportional to 542,372.76, 748,395.59 and 300,655.13 is: 414,860.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,372.76 : 748,395.59 = 300,655.13 : x
  2. Step 2: Convert to fraction form
    542,372.76/748,395.59 = 300,655.13/x
  3. Step 3: Cross multiply
    542,372.76x = 748,395.59 × 300,655.13
  4. Step 4: Simplify right side
    542,372.76x = 225,008,968,157.62
  5. Step 5: Solve for x
    x = 225,008,968,157.62/542,372.76
  6. Step 6: Final answer
    x = 414,860.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.